MAGNA DRIVETRAIN AG & CO KG Patent applications |
Patent application number | Title | Published |
20090205917 | Magnetorheological Clutch - The inventive magnetorheological clutch comprises a fixed part ( | 08-20-2009 |
20080308354 | Power Divider for Motor Vehicles and Lubrication Thereof - A power divider for motor vehicles includes a housing, a primary shaft and a secondary shaft, wherein a friction clutch having an outer part that is rigidly connected to the primary shaft, and an inner part, derives torque from the primary shaft and delivers the torque to the secondary shaft by means of the inner part and a displacement drive. To ensure a sufficient supply of lubrication oil under all conditions, an oil reservoir, which at least partially surrounds the ramp ring, is fixed in the housing between the coupling and the displacement drive. The base of the oil reservoir comprises at least one opening, which is adjacent to the upper part of the periphery of the ramp ring, and the oil reservoir has at least one guiding device that extends into the centrifugal area of the displacement drive, through which the centrifuged lubrication oil is received in the reservoir. | 12-18-2008 |
20080255740 | Method For Controlling a Hydraulic Actuator Comprising a Rapid Drain Valve and a Control System and a Friction Coupling Comprising an Actuator of this Type - A method of controlling a hydraulic actuator of a friction coupling that includes a pump, which is driven by an electric motor, a pressure line, which contains a non-return valve and which runs from the pump to an actuator cylinder with an actuator piston that acts on the friction coupling. A rapid drain valve has a flow connection to the actuator cylinder and contains a slide that responds to the pressure prevailing on the side of the pump that faces the slide. To optimize the dynamic and static control behavior of the actuator, a control variable is determined for the electric motor from the target pressure and the actual pressure in the actuator cylinder. At least two different control algorithms are executed, depending on whether the difference between the target pressure and the actual pressure is positive or negative. | 10-16-2008 |
20080236976 | Magnetorheological Clutch - Disclosed is a magnetorheological clutch comprising a stationary part ( | 10-02-2008 |